Add skills

.config/opencode/skills/context7-cli/references/setup.md

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+# Setup
+
+## ctx7 setup
+
+One-time command to configure Context7 for your AI coding agent. Prompts for mode on first run:
+- **MCP server** — registers the Context7 MCP server so the agent can call tools natively
+- **CLI + Skills** — installs a `find-docs` skill that guides the agent to use `ctx7` CLI commands (no MCP required)
+
+```bash
+ctx7 setup                     # Interactive — prompts for mode, then agent/install target
+ctx7 setup --mcp               # Skip prompt, use MCP server mode
+ctx7 setup --cli               # Skip prompt, use CLI + Skills mode
+
+# MCP mode — target a specific agent
+ctx7 setup --claude            # Claude Code only
+ctx7 setup --cursor            # Cursor only
+ctx7 setup --opencode          # OpenCode only
+
+# CLI + Skills mode — target a specific install location
+ctx7 setup --cli --claude      # Claude Code (~/.claude/skills)
+ctx7 setup --cli --cursor      # Cursor (~/.cursor/skills)
+ctx7 setup --cli --universal   # Universal (~/.agents/skills)
+ctx7 setup --cli --antigravity # Antigravity (~/.config/agent/skills)
+
+ctx7 setup --project           # Configure current project instead of globally
+ctx7 setup --yes               # Skip confirmation prompts
+```
+
+**Authentication options:**
+```bash
+ctx7 setup --api-key YOUR_KEY  # Use an existing API key (both MCP and CLI + Skills mode)
+ctx7 setup --oauth             # OAuth endpoint — MCP mode only (IDE handles the auth flow)
+```
+
+Without `--api-key` or `--oauth`, setup opens a browser for OAuth login. MCP mode additionally generates a new API key after login. `--oauth` is MCP-only.
+
+**What gets written — MCP mode:**
+- MCP server entry in the agent's config file (`.mcp.json` for Claude, `.cursor/mcp.json` for Cursor, `.opencode.json` for OpenCode)
+- A Context7 rule file instructing the agent to use Context7 for library docs
+- A `context7-mcp` skill in the agent's skills directory
+
+**What gets written — CLI + Skills mode:**
+- A `find-docs` skill in the chosen agent's skills directory, guiding the agent to use `ctx7 library` and `ctx7 docs` commands